Support for spinning-spindles



(No MBNE L 2 Sheets-Sheet 1.

W. T. CARROLL. SUPPORT FOR SPINNING SPINDLES.

Patented Nov. 8., 1887.

N. FEIERS. Plume-Lithographer. Washington, D. c.

- (N0 Moder.) 2 sh-eets sheet 2.,

' W. T. CARROLL.

SUPPORT FORSPINNING SPIN-BLES- Patented Nov. 8, 1887..

lhographer. Washinghm n, c.

UNITED STATES PATENT ()FFICE.

WILLIAM T. CARROLL, OF WORCESTER, ASSIGNOR TO GEORGE DRAPER &

SONS, OF HOPEDALE, MASSACHUSETTS.

SUPPORT FOR SPINNI NG-SPINDLES.

SPECIFICATION forming part of Letters Patent No. 372,838, dated November 8, 1887.

i Application filed March 29, 1887. Serial No. 232,860. (No model.)

To aIZZ whom it may concern.-

Be it known that I, WILLIAM T. CARROLL, of Worcester, county of Worcester, and State of Massachusetts, have invented an Improvement in Supports for Spinning-Spindles, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to improve that class of spindlebearingswherein the lower end of the spindle, or that part of it below the point where the whirl is attached, runs in a yielding-support.-

In practice the support for a rapidly-rotating spindle carrying an unbalanced load must be able to yield to a limited extent with relation to a socket of a rail or holder.

In my experiments to devise a practical bearing for a rapidly-rotating spindle and at the same time avoid the use within the whirl of a loose bolster surrounded by an elastic packing or other yielding cushion, I have discovered that most excellent results may be, achieved by employing a support having at its upper end a tube-like bearing port-ion to re ceive the pintle of the spindle, the support having a seat at a point below the lower end of the spindle, the said support having a shank which, at a point below the said seat, has attached to it the upper end of a cushion, preferably made as a spiral spring, the lower end of which is attached to an adjustable plug, the combination of the parts being such that the shank of the support is free to move laterally or to rock or tip, to a. limited extent, in or with relation to the socket or holder, and preferably the spring will be slightly distended to thus normally retain the collar or a projection of the support seated upon or in the seat or rest forming part of the socket or holder.

Prior to my invention I am aware that a spindle has been made to rotate in a yielding bolster inserted loosely within a rigid tubular standard, the lower end of the bolster being connected in such manner with a spring as to permit the bolster itself, loosely held within a rigid support constituting thelateral bearing for the spindle, to move freely to a limited extent; but in such form of spindle-support the bolster turns or rocks upon a center substantially coincident with the bottom of the bandgroove in the sleeve-whirl. So, also, prior to my invention, I am aware that a rigid tubelike support has received within it a spindle, the lower end of which is extended below the spindle-rail, the shank of the said support, acted upon by a spiral spring immediately at or above the lower end of the spindle, as in United States Patent N 0. 253,572, being free to rock or tip upon or about a'point above the bottom of the spindle and above the top of the rail.

My invention consists, essentially, in the combination, with a spindle, a socket or holder, and a spindle-support having a shank extended therein below the foot-step, of a spiral spring attached to the said support, and with'means to distend the said spring; also, in a spindle, a socket or holder, and a spindlesupport having a downwardly-extended shank inserted into the said socket orholder, the exterior of the shank and the interior of the a socket or holder beingshaped with relation to each otherto form a seat or rest for the sup port below the lower end of the spindle, com bined with an elastic cushion cooperating with the shank of the support at a point below its point of rest, and with means for adjusting the tension of the said cushion also, in a spindle, its support, a socket or holder for the same, and a plug, combined with a spiral spring attached to the said support andto the said plug, and with means to adjust the said plug to distend the said spring, to thereby keep the support seated in a yielding manner, as will be described.

Figure 1 of the drawings, illlustrating the best form of my invention, shows in vertical section aspindle-support, sleeve-whirl, holder, nut, and rai l, and the devices within the holder, the spindle (but partially shown) being in elevation. Fig. 2 represents a modified form of my invention, wherein a fibrous or other elastic or yielding cushion is substituted for the spiral spring; and Fig. 3 is a modification of Fig. 1, with the collar or projection carried up to the top of the support or holder or above the top of the rail.

The spindle-support herein to be described vibrates or moves about a point below the lower end of the spindle, and also preferably below the top of the socket or holder which receives the shank of the support. By retaining the support down within the socket or holder by means of aspring or elastic medium under tension the said spring or elastic medium is made to keep the support from vertical motion with relation to the socket or holder or with relation to the top of the rail.

As a modification, I have shown the shank of the support as substantially cylindrical throughout its entire length, thus leaving a narrow uniform space between the shank and the interior of the socket or holder, the lower end of the shank being surrounded by means of a cushion, which may be either aspring or an elastic or fibrous tube, the cushion being connected to both the shank of the support and a plug.

' As herein shown, the bolster-rail A, which may be of any usual or suitable construction, receives within it a holder, B, havinga flange, B, to rest upon the top of the bolsterrail, and serves the purpose 'of a socket to receive the support, the holder being retained in position with relation to the bolster-rail by a nut, B, screwed upon a threaded part of the holder.

The holder B, at or below its upper end, (see Figs. 1 and 2,) is provided with a seat or projection, 1), upon which bears or with which co-operates a part of the support below the lower end of the spindle F, having a sleevewhirl, F.

As herein shown, the support has a collar or projection, b, and as also herein shown,

' the support is composed of a tubular top, D,

and a shank, D, all in one piece.

The external diameter of the support is enough smaller than the internal diameter of the socket or holder o leave a space between the shank and the socket or holder, in which the shank of the support may move laterally or may rock or tip to a limited extent.

The lower end of the spindle rests upon a suitable step, 0, either separate from or forming, it may be, an integral part of the support.

The lower end of the shank D, at a point below the step 0, is acted upon by a cushion, E. (Shown in Fig. 1 as aspring extended below that point of the support about which the latter tips, rocks, or vibrates as the spindle seeks to adapt itself to an unequal load.)

For the best results I have ascertained that the cushion or elastic medium E should be a spiral-spring, as in Figs. 1 and 3, the upper end of the cushion being secured to the shank of the support, while the lower end thereof should be secured to a plug, as at 0.

As herein shown, I have provided the lower end of the said stud or post 0 with screwthreads for the reception of a nut, as 0 rotation of which moves the plug longitudinally, thereby distending the cushion and determining the extent of tension put upon the spring, and consequently the force by which the collar or projection 11 of the shank is held to its seat.

Although I greatly prefer the employment of a cushion made as a coiled spring, yet I should deem as within the scope of my inven tion the employment of a cushion composed of fibrous or other packing to co-operate with the shank D at a distance below the foot of the spindle, or below the point at which the spindle vibrates or rocks.

As a modification, I have shown in Fig. 2 a cushion made from a fibrous tube, the tube being connected by a fine wire or thread to both the shank D and the plug 0. The screw 2 (see Fig. 3) acts to hold the plug 0 in adjusted position.

In Fig. 3 I have shown asupport like that in Fig.1,the collar or proj ectionb being carried up higher. I have shown the support as provided with a chamber, as D, between its upper and lower ends for the reception of oil.

To enable the support to properly sustain the most unbalanced load when in revolution, the shank of the support from the step downward to its lower end should be longer than from the step to the top of the support within the sleeve-whirl; or, in other words, the support should be so located with relation to the rail thata greater portion of the length of the support is below rather than above the top of the rail, and the entire support should be and is free to move laterally or rock or tip with relation to the rail.

The support D D constitutes a bolster for the spindle.

I claim 1. The spindle, a socket or holder, and a spindle support having a shank extended therein below the foot-step upon which the spindle turns, combined with a spiral spring attached to the said support, and with means to distend the said spring, substantially as described.

2. A spindle, a socket or holder, and a spindle-support having a downwardly-extended shank inserted into the said socket or holder, the exterior of the shank and the interior of the socket or holder being shaped with relation to each other to form a seat or rest for the support below the lower end of the spindle, combined with an elastic cushion co-operating with the shank of the support at a point below its point of rest, and with means for adjusting the tension of the said cushion, the combination operating substantially as described.

3. The spindle, its support, and socket or holder for the same, and a plug, combined with a spiral spring attached to the support and to the plug, and with means to adjust the said plug to distend the said spring, to thereby keep the support seated in a yielding manner in the socket or holder, substantially as described.

In testimony whereofIhavesigned my name to this specification in the presence of two subscribing witnesses.

WILLIAM 'r. CARROLL.

Witnesses:

F. J. DUTCHER, WM. F. DRAIER. 

